NASAのインスタグラム(nasa) - 4月22日 02時41分

Our Solar Dynamics Observatory watched an active region on the Sun — an area with intense, complex magnetic activity — rotate into view on April 18-19, seen here in extreme ultraviolet. These bright, towering arches consist of charged particles spiraling along magnetic field lines that were revealed in this view in a wavelength of extreme ultraviolet light. They rise up above the Sun's surface many times the size of Earth. This view covers just 16 hours of activity and our scientists are keeping their eyes on this region to see if it has the potential to produce solar storms.
Video Credit: NASA/SDO
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